Results 31 to 40 of about 13,996 (160)

Non-Cooperative Low-Complexity Detection Approach for FHSS-GFSK Drone Control Signals

open access: yesIEEE Open Journal of the Communications Society, 2020
The commercial drone market has substantially grown over the past few years. While providing numerous advantages in various fields and applications, drones also provide ample opportunities for misuse by irresponsible hobbyists or malevolent actors.
Dan Mototolea   +3 more
doaj   +1 more source

Audio Watermarking Combined with Compressive Sampling Based on QIM and DST-QR Techniques

open access: yesJurnal Elektronika dan Telekomunikasi, 2019
Abuse is not only done to copy or distribute data but also to the digital copyright labels. There is a way to protect data by inserting or hiding a piece of certain information, namely a watermarking technique.
Irma Safitri   +2 more
doaj   +1 more source

Compressed NMR: Combining compressive sampling and pure shift NMR techniques [PDF]

open access: yesMagnetic Resonance in Chemistry, 2018
Historically, the resolution of multidimensional nuclear magnetic resonance (NMR) has been orders of magnitude lower than the intrinsic resolution that NMR spectrometers are capable of producing. The slowness of Nyquist sampling as well as the existence of signals as multiplets instead of singlets have been two of the main reasons for this ...
Juan A. Aguilar, Alan M. Kenwright
openaire   +3 more sources

Computer-Vision-Oriented Adaptive Sampling in Compressive Sensing

open access: yesSensors
Compressive sensing (CS) is recognized for its adeptness at compressing signals, making it a pivotal technology in the context of sensor data acquisition.
Luyang Liu   +4 more
doaj   +1 more source

Compressive Sampling and Feature Ranking Framework for Bearing Fault Classification With Vibration Signals

open access: yesIEEE Access, 2018
Failures of rolling element bearings are amongst the main causes of machines breakdowns. To prevent such breakdowns, bearing health monitoring is performed by collecting data from rotating machines, extracting features from the collected data, and ...
Hosameldin Ahmed, Asoke K. Nandi
doaj   +1 more source

Basis Pursuit With Sparsity Averaging for Compressive Sampling of Iris Images

open access: yesIEEE Access, 2022
This paper proposes novel compressive sampling (CS) of colored iris images using three RGB iterations of basis pursuit (BP) with sparsity averaging (SA), called RGB-BPSA.
Tariq Rahim   +6 more
doaj   +1 more source

Generative Diffusion Models for Compressed Sensing of Satellite LiDAR Data: Evaluating Image Quality Metrics in Forest Landscape Reconstruction

open access: yesRemote Sensing
Spaceborne LiDAR systems are crucial for Earth observation but face hardware constraints, thus limiting resolution and data processing. We propose integrating compressed sensing and diffusion generative models to reconstruct high-resolution satellite ...
Andres Ramirez-Jaime   +9 more
doaj   +1 more source

Quadrature Compressive Sampling for Multiband Radar Echo Signals

open access: yesIEEE Access, 2017
In multiband/multifunction radars, the received echoes are usually multiband signals consisting of several subbands with different carrier frequencies. Digital acquisition of the in-phase and quadrature (I and Q) components of each subband is important ...
Shengyao Chen, Feng Xi
doaj   +1 more source

Energy Preserved Sampling for Compressed Sensing MRI [PDF]

open access: yesComputational and Mathematical Methods in Medicine, 2014
The sampling patterns, cost functions, and reconstruction algorithms play important roles in optimizing compressed sensing magnetic resonance imaging (CS-MRI). Simple random sampling patterns did not take into account the energy distribution ink-space and resulted in suboptimal reconstruction of MR images.
Zhang, Yudong   +3 more
openaire   +2 more sources

Sub-Nyquist SAR via Quadrature Compressive Sampling with Independent Measurements

open access: yesRemote Sensing, 2019
This paper presents an efficient sampling system for the acquisition of synthetic aperture radar (SAR) data at sub-Nyquist rate. The system adopts a quadrature compressive sampling architecture, which uses modulation, filtering, sampling and digital ...
Huizhang Yang   +3 more
doaj   +1 more source

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